This porcelain was developed for modelling and throwing.
Black Ice is a black porcelain body noted for its beautiful black graphite fired color. It has high plasticity, which makes it ideal for wheel-throwing and modeling. Its formula is very stable and provides a secure firing range between Cone 6 and Cone 7 (oxidizing atmosphere). Suitable for tableware (food-safe), according to ISO 6486:1999. Available in extruded body (moist form). Supplied in a practical 11 lb cylindrical format with double packaging.
Firing – Ceramic kiln high fire
Weight/Volume – 11 lbs – 5 kg
Grog – No grog
State – Moist form (plastic body)
Stiffness – For wheel throwing and handbuilding
Firing range: Cone 6-7 (2192º-2264ºF / 1200-1240ºC)
Bisque firing temperature: Cone 06 (1832ºF / 1000ºC)
Water content: 20%
Plasticity (IP Atterberg): 11
Carbonate content (CaCO3): 0%
Drying shrinkage: 5.4%
Firing shrinkage at Cone 6: 10.3%
Porosity (water absorption) at Cone 6: 0.0%
Dry bending strength: 3.1 N/mm2
Fired bending strength at Cone 6: 39.8 N/mm2
Thermal coefficient (a25-500ºC): 54.3×10-7ºC-1
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